Chad vs Senegal
On research quality in 2022-now, Senegal ranks #151 in the world and Chad #168, of 189 countries. Chad stands higher in 0 of the 6 fields both publish in, Senegal in 6.
Research profiles alike: 0.78very similar shapes of research, whatever their size. How it is measured
Compare other countries
Chad
- World rank, 2022-now
- #168
- #171 all time
- Works, 2022-now
- 545
- fractional
- Top-10% rate
- 4.2%
- share of its work among the world's most cited
- Open access
- 79%
- of its works free to read
Strongest relative focus: Forestry, Ecology, Evolution, Behavior and Systematics, Geochemistry and Petrology.
Senegal
- World rank, 2022-now
- #151
- #136 all time
- Works, 2022-now
- 5.3k
- fractional
- Top-10% rate
- 4.3%
- share of its work among the world's most cited
- Open access
- 62%
- of its works free to read
Strongest relative focus: Forestry, Horticulture, Microbiology.
Who leads, measure by measure?
Chad leads on 4 of 9 measures: excellence for its fields, open access, international co-authorship and growth. Senegal leads on 3 of 9 measures: research quality, output and citations per work. The two are level on top-10% rate and institutions in the world top 100.
- #168Research qualityworld rank of 189 countries, 2022-now#151
- 0.75×Excellence for its fieldsits top-10% rate against what its topics predict; 1.00× is as expected0.40×
- 545Outputfractional works, 2022-now5.3k
- 4.2%Top-10% rateshare of its works among the world's most cited4.3%
- 4.6Citations per workall time, per fractional work6.7
- 0World top 100institutions it holds among the world's best 1000
- 79%Open accessof its works free to read, all time62%
- 47%Internationalof its works written with co-authors abroad, all time30%
- +104%Growthworks in 2022-25 against 2018-21; half a bar is no change+15%
A rank is drawn as its standing: the longer the bar, the nearer the top. Anything else is drawn against the larger of the two, and two values a hair apart are called level. Quality, excellence and the top-10% rate are explained in the methodology.
Who leads in each field?
Chad stands higher in 0 of 6 fields, Senegal in 6. Each bar is that side's standing among all countries ranked in the field: the full bar is first place.
- -Agricultural and Biological Sciences#97
- -Computer Science#121
- -Engineering#124
- -Environmental Science#106
- -Medicine#118
- -Social Sciences#122
Standing is the percentile of world rank within each field, 2022-now; the printed number is the rank itself. A dash means the field is too small there to rank. How sides are compared.
The numbers behind each field
Click a heading to sort. The side that does better in a pair of columns is shaded: a lower rank, a higher rate, more works.
| Field | Chad rank | Senegal rank | Chad top 10% | Senegal top 10% | Chad works | Senegal works |
|---|---|---|---|---|---|---|
| Agricultural and Biological Sciences | - | #97 | - | 5.5% | - | 657 |
| Computer Science | - | #121 | - | 3.1% | - | 314 |
| Engineering | - | #124 | - | 2.8% | - | 419 |
| Environmental Science | - | #106 | - | 3.8% | - | 310 |
| Medicine | - | #118 | - | 2.6% | - | 1.4k |
| Social Sciences | - | #122 | - | 8.4% | - | 643 |
What is each known for?
The keywords that describe each side's research, by fractional works in 2022-now and weighted toward what it does more of than the world.
Chad
- Liver Disease
- Community Health Workers
- Antiviral Therapy
- Water Sanitation Hygiene
- Maternal Mortality
- Vaccine
- Indigenous Fruits
- Agroforestry
- Biodiversity Conservation
- Diabetes
- Nutritional Value
- Remote Sensing
- Genetic Diversity
- Public Health
- Renewable Energy
- Multifunctionality
- Agroecology
- Diversity
- Smallholder Farmers
- Climate Change
- Epidemiology
- Sustainability
- Adaptation
- Livestock Farming
- Agricultural Development
- Work Organization
- Immune Response
- Treatment
- Sustainable Agriculture
- Antioxidant
- Climate Resilience
- Global Burden
- Governance
- Health Benefits
- Tree Domestication
- Global Burden of Disease
- Maternal and Child Undernutrition
- GIS
- Antiretroviral Therapy
- Institutional Quality
All 40 words, with their numbers
- Epidemiology62▲ 2.3×83 topics
- Climate Change50▲ 2.8×47 topics
- Sustainability43▲ 2.6×36 topics
- Smallholder Farmers39▲ 28×6 topics
- Adaptation31▲ 16×5 topics
- Diversity26▲ 22×4 topics
- Livestock Farming26▲ 65×2 topics
- Agroecology26▲ 27×2 topics
- Agricultural Development25▲ 25×2 topics
- Multifunctionality25▲ 81×1 topic
- Work Organization25▲ 97×1 topic
- Renewable Energy20▲ 2.0×22 topics
- Immune Response19▲ 5.0×13 topics
- Public Health19▲ 1.92×34 topics
- Treatment19▲ 2.3×27 topics
- Genetic Diversity19▲ 6.4×15 topics
- Sustainable Agriculture18▲ 8.5×9 topics
- Remote Sensing17▲ 2.1×15 topics
- Antioxidant16▲ 3.5×26 topics
- Nutritional Value15▲ 20×2 topics
- Climate Resilience15▲ 38×3 topics
- Diabetes15▲ 4.4×11 topics
- Global Burden15▲ 4.1×12 topics
- Biodiversity Conservation14▲ 5.4×8 topics
- Governance13▲ 5.9×7 topics
- Agroforestry12▲ 27×4 topics
- Health Benefits12▲ 5.3×10 topics
- Indigenous Fruits12▲ 77×1 topic
- Tree Domestication12▲ 77×1 topic
- Vaccine12▲ 4.3×9 topics
- Global Burden of Disease10▲ 6.3×2 topics
- Maternal Mortality10▲ 6.9×5 topics
- Maternal and Child Undernutrition10▲ 19×1 topic
- Water Sanitation Hygiene10▲ 19×1 topic
- GIS10▲ 19×3 topics
- Antiviral Therapy9▲ 14×3 topics
- Antiretroviral Therapy9▲ 7.9×6 topics
- Community Health Workers9▲ 14×2 topics
- Institutional Quality9▲ 12×2 topics
- Liver Disease8▲ 14×2 topics
Senegal
- Political Transition
- Proximity and Innovation
- Citizen Participation
- Tree Domestication
- Rural Livelihoods
- Vaccine
- Ethnicity
- Agroforestry
- Genetic Diversity
- Local Development
- Colonialism
- Community Engagement
- Pathogenesis
- Sustainable Agriculture
- Public Health
- Multifunctionality
- Agricultural Development
- Agroecology
- Smallholder Farmers
- Climate Change
- Epidemiology
- Sustainability
- Adaptation
- Diversity
- Livestock Farming
- Work Organization
- Healthcare
- Biodiversity Conservation
- Social Justice
- Global Burden
- Territorial Governance
- Vaccine Development
- Governance
- Climate Resilience
- Nutritional Value
- Social Movements
- Indigenous Fruits
- Decentralization
- Environmental Participation
- Africa
All 40 words, with their numbers
- Epidemiology498▲ 2.0×129 topics
- Climate Change426▲ 2.5×90 topics
- Sustainability328▲ 2.2×77 topics
- Smallholder Farmers307▲ 24×6 topics
- Adaptation238▲ 13×13 topics
- Agroecology208▲ 24×5 topics
- Diversity207▲ 19×10 topics
- Agricultural Development202▲ 22×5 topics
- Livestock Farming201▲ 55×2 topics
- Multifunctionality201▲ 70×2 topics
- Work Organization199▲ 84×1 topic
- Public Health191▲ 2.1×56 topics
- Healthcare160▲ 2.3×27 topics
- Sustainable Agriculture126▲ 6.6×12 topics
- Biodiversity Conservation113▲ 4.9×14 topics
- Pathogenesis112▲ 3.6×23 topics
- Social Justice112▲ 3.0×31 topics
- Community Engagement110▲ 5.5×15 topics
- Global Burden110▲ 3.3×12 topics
- Colonialism108▲ 3.7×34 topics
- Territorial Governance105▲ 15×4 topics
- Local Development105▲ 16×2 topics
- Vaccine Development100▲ 6.4×11 topics
- Genetic Diversity99▲ 3.7×19 topics
- Governance98▲ 4.9×11 topics
- Agroforestry96▲ 23×3 topics
- Climate Resilience95▲ 26×2 topics
- Ethnicity94▲ 4.1×13 topics
- Nutritional Value92▲ 13×4 topics
- Vaccine90▲ 3.7×11 topics
- Social Movements82▲ 4.5×18 topics
- Rural Livelihoods82▲ 25×2 topics
- Indigenous Fruits82▲ 58×1 topic
- Tree Domestication82▲ 58×1 topic
- Decentralization77▲ 6.0×4 topics
- Citizen Participation74▲ 10×2 topics
- Environmental Participation73▲ 17×1 topic
- Proximity and Innovation73▲ 17×1 topic
- Africa65▲ 26×3 topics
- Political Transition62▲ 20×3 topics
Size is fractional works in the topics tagged with each word; colour is the word's share of the side's work against its share of the world's. Each word links to the topic it comes from most.
How has their output grown?
Senegal has out-published Chad every year since 1980.
Fractional works per year.
Their share of all research
Growing output can still be a shrinking share, because all of science grows. Each line is a side as a percentage of every work published that year.
Fractional works over all fractional works that year. How the balance of science has shifted.
How much of it reaches the world top 10%
The share of each side's works, year by year, that reached the world's 10% most cited for their field and year. The average of all institutions is 10.0% (why not 10%).
A year with under 1% of the side's peak output is left out: a rate over a handful of papers says nothing. The latest years are still being cited.
Who holds more of the world's best institutions?
A country's average quality and the number of institutions it holds at the very top can disagree, and both are worth knowing. The counts are nested: an institution in the top 50 is also in the top 100.
- 0In the world top 500
- 0In the top 1000
- 0In the top 5000
- 0In the top 1,0000
- #51Elite capacityrank among 204 countries#51
Institutions ranked on research quality, 2022-now. Elite capacity counts a country's institutions by their worldwide rank, weighted so a place at #1 counts for more than one at #480.
Which publishes more research, Chad or Senegal?
Senegal publishes 9.7× as much research as Chad in 2022-now (5.3k against 545 fractional works).
Whose research has more impact, Chad or Senegal?
4.3% of Senegal's research reaches the world's top 10% most cited, against 4.2% for Chad.
Is Chad or Senegal growing faster?
Output in 2022-25 was +104% against 2018-21 for Chad, and +15% for Senegal.
Which has more open access research, Chad or Senegal?
79% of Chad's research is free to read, against 62% of Senegal's.
Which has more world-class institutions, Chad or Senegal?
Chad holds 0 of the world's top 100 research institutions and Senegal 0; in the top 1,000 it is 0 against 0.
Which institutions lead in each country?
The highest-ranked institutions on each side on research quality, 2022-now. The percentage is each institution's own top-10% rate: the share of its works that are among the world's 10% most cited for their field and year. Every figure stands alone, so they do not add up to 100%.
Chad
- 1University of N'Djamena3.4% top 10% · 365 works
Senegal
- 1Université Gaston Berger4.4% top 10% · 520 works
- 2Cheikh Anta Diop University3.6% top 10% · 2.2k works
- 3Ziguinchor University5.2% top 10% · 302 works
- 4Université Alioune Diop de Bambey1.8% top 10% · 254 works
- 5Ministère de l’Environnement et du Développement Durable10.7% top 10% · 168 works
- 6Centre Hospitalier National Universitaire de Fann2.0% top 10% · 262 works
The number is the rank inside the country. The track on each row is the top-10% rate; the tick is the average of all institutions, 10.0% (how it is set): teal above it, red below. The ranking is the quality score, which compares the rate with what each institution's own topics predict and adds a small reward for size, so the rates do not fall in order.
Who are the top researchers on each side?
The most cited researchers on each side, among those ranked.
Chad
- 1 Andossa Likius #853,994 worldwide 4.6k citations · 80 works
- 2 Jean‐Claude Mousseuknadji Kouladoum #1,017,261 worldwide 387 citations · 27 works
- 3 Hassane Taïsso Mackaye #1,057,251 worldwide 3.5k citations · 61 works
- 4 Yodé Miangotar #1,646,455 worldwide 1.9k citations · 18 works
- 5 Hassan Taïsso Mackaye #1,834,244 worldwide 1.1k citations · 22 works
Senegal
- 1 Amadou Alpha Sall #62,432 worldwide 13k citations · 193 works
- 2 Amadou Alpha Sall #98,926 worldwide 12k citations · 199 works
- 3 Susan Shepherd #185,173 worldwide 10k citations · 146 works
- 4 Massamba Sylla #244,316 worldwide 2.4k citations · 71 works
- 5 Gamou Fall #272,079 worldwide 2.7k citations · 161 works